Question

-5x - 3y + 7x + 21y Simplify

Answer 1

2x + 18y

Explanation:

-5x - 3y + 7x + 21y ----> (combine like terms)

2x - 3y + 21 y ---> (combine like terms)

2x + 18y

Answer 2

`\huge\boxed{\sf 2(x + 9y)}`

Explanation:

Given expression:

= -5x - 3y + 7x + 21y

• Combine like terms

= -5x + 7x - 3y + 21y

= 2x + 18y

• Common factor = 2

So, take 2 as a common factor

= 2(x + 9y)

`\rule[225]{225}{2}`